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lisabon 2012 [21]
4 years ago
5

Four multiple choice science questions.

Physics
2 answers:
mixas84 [53]4 years ago
7 0
A
c
a
c
just from memory hope this helps

Sati [7]4 years ago
4 0
1. Jupiter (being the largest planet and all)
2. Ice and Rock
3. None of the above
4. Uranus
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Ice caps at the north and south poles are very reflective the ice reflects light and heat rather than absorbing it. If global wa
PolarNik [594]
The way you described it, a small change will cause a bigger change.
That's Positive feedback.
5 0
3 years ago
A solid, uniform sphere of mass 2.0 kg and radius 1.7 m rolls without slipping down an inclined plane of height 5.3 m. what is t
inn [45]
<span>Answer: Total kinetic energy at the bottom = 0.5(1+0.4) mv^2 = mgh V^2 = 7*9.8/0.7 V = 9.9m/s ω = V/r = 9.9/1.7 = 5.8rad/s Answer c. 5.8 rad/s</span>
7 0
4 years ago
5. Kelvin applied a rightward force of 302 N to a 29 kg desk to accelerate it across the floor. The
Naddik [55]

The force of friction is 213.2 N

Explanation:

The frictional force acting on an object sliding on a surface is given by:

F_f = \mu mg

where:

\mu is the coefficient of friction

m is the mass of the object

g is the acceleration of gravity

In this problem we have

\mu=0.750

m = 29 kg

g=9.8 m/s^2

Therefore, the force of friction is

F_f = (0.750)(29)(9.8)=213.2 N

Learn more about friction:

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#LearnwithBrainly

3 0
3 years ago
Pleaseeeeeee, help me, I need youuuu!!!!!!
tester [92]
The picture is blurry dude :/
6 0
3 years ago
Draw an energy chain diagram to show energy transformations for this event:
larisa86 [58]

The energy chain diagram in this case is chemical energy >> energy conversion >> motion (kinetic) energy + thermal energy.

<h3>What is an energy chain diagram?</h3>

An energy chain diagram is a graphic representation indicating the conversion between different types of energies.

Kinetic energy is a type of motion (movement) energy generated by using potential (stored) energy.

Chemical energy (in this case, the fuel of the car) is a type of energy that is stored to perform work.

Learn more about kinetic energy here:

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8 0
2 years ago
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